Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings
Composite insulators are widely used in power grids at home and abroad. The anti-pollution flashover performance, hydrophobicity and hydrophobic migration, and pollution flashover mechanism of composite insulators have been the focus of international attention. Temperature is one of the important pa...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8890689/ |
| _version_ | 1818910167576608768 |
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| author | Yanpeng Hao Yuan Fu Jie Wei Lin Yang Guiyun Mao Zhenglin Yang Licheng Li |
| author_facet | Yanpeng Hao Yuan Fu Jie Wei Lin Yang Guiyun Mao Zhenglin Yang Licheng Li |
| author_sort | Yanpeng Hao |
| collection | DOAJ |
| description | Composite insulators are widely used in power grids at home and abroad. The anti-pollution flashover performance, hydrophobicity and hydrophobic migration, and pollution flashover mechanism of composite insulators have been the focus of international attention. Temperature is one of the important parameters to describe the flashover of composite insulators. In this paper, the internal temperatures of a composite insulation sample were detected based on FBGs (fiber Bragg gratings). The sample was layered and made of one layer of silicone rubber 3 mm in thickness and one layer of epoxy-GFRP (Glass Fiber Reinforced Plastics) similar to 220 kV composite insulators. Three gratings were embedded in the interface of the two layers between long and short electrodes on the surface of the sample. Temperature calibration tests were carried out on the gratings in the sample. Then, discharges tests were done on the sample with embedded FBGs. Internal temperatures as well as leakage currents were measured, and the arcs process of the discharges on the sample was photographed. The test conditions are as follows: the output voltage was increased by approximately 0.5 kV/s; the equivalent salt deposit density (ESDD) was about 0.5 mg/cm<sup>2</sup> and the non-soluble deposit density (NSDD) was about 1.2 mg/cm<sup>2</sup>.The results show that the internal FBGs could sense the flashover on the surface of the sample. An interface temperature rise caused by the discharges is within 11 °Cin this paper. There is a time delay of 1.4 s from the leakage current arise to the temperature rise during the discharges. The arcs always develops from the small electrode to the large electrode on the surface of the sample, the rise process of the internal temperature at the interface under the middle surface position of the two electrodes is significantly different from that near the small electrode, the arcs starting electrode, while similar to that near the large electrode, the flashover electrode. |
| first_indexed | 2024-12-19T22:38:30Z |
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| id | doaj.art-3a4511e51d90440c97a5c5d415fa93e2 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T22:38:30Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-3a4511e51d90440c97a5c5d415fa93e22022-12-21T20:03:08ZengIEEEIEEE Access2169-35362019-01-01716116716117410.1109/ACCESS.2019.29511968890689Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg GratingsYanpeng Hao0https://orcid.org/0000-0002-7938-2835Yuan Fu1Jie Wei2Lin Yang3https://orcid.org/0000-0002-4148-5740Guiyun Mao4Zhenglin Yang5Licheng Li6https://orcid.org/0000-0003-0322-6403School of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaComposite insulators are widely used in power grids at home and abroad. The anti-pollution flashover performance, hydrophobicity and hydrophobic migration, and pollution flashover mechanism of composite insulators have been the focus of international attention. Temperature is one of the important parameters to describe the flashover of composite insulators. In this paper, the internal temperatures of a composite insulation sample were detected based on FBGs (fiber Bragg gratings). The sample was layered and made of one layer of silicone rubber 3 mm in thickness and one layer of epoxy-GFRP (Glass Fiber Reinforced Plastics) similar to 220 kV composite insulators. Three gratings were embedded in the interface of the two layers between long and short electrodes on the surface of the sample. Temperature calibration tests were carried out on the gratings in the sample. Then, discharges tests were done on the sample with embedded FBGs. Internal temperatures as well as leakage currents were measured, and the arcs process of the discharges on the sample was photographed. The test conditions are as follows: the output voltage was increased by approximately 0.5 kV/s; the equivalent salt deposit density (ESDD) was about 0.5 mg/cm<sup>2</sup> and the non-soluble deposit density (NSDD) was about 1.2 mg/cm<sup>2</sup>.The results show that the internal FBGs could sense the flashover on the surface of the sample. An interface temperature rise caused by the discharges is within 11 °Cin this paper. There is a time delay of 1.4 s from the leakage current arise to the temperature rise during the discharges. The arcs always develops from the small electrode to the large electrode on the surface of the sample, the rise process of the internal temperature at the interface under the middle surface position of the two electrodes is significantly different from that near the small electrode, the arcs starting electrode, while similar to that near the large electrode, the flashover electrode.https://ieeexplore.ieee.org/document/8890689/Fiber Bragg gratingsinternal temperaturecontaminated silicone rubberdischarges |
| spellingShingle | Yanpeng Hao Yuan Fu Jie Wei Lin Yang Guiyun Mao Zhenglin Yang Licheng Li Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings IEEE Access Fiber Bragg gratings internal temperature contaminated silicone rubber discharges |
| title | Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings |
| title_full | Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings |
| title_fullStr | Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings |
| title_full_unstemmed | Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings |
| title_short | Internal Temperature Detections of Contaminated Silicone Rubber Under Discharge Conditions Based on Fiber Bragg Gratings |
| title_sort | internal temperature detections of contaminated silicone rubber under discharge conditions based on fiber bragg gratings |
| topic | Fiber Bragg gratings internal temperature contaminated silicone rubber discharges |
| url | https://ieeexplore.ieee.org/document/8890689/ |
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